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Compact Fieldbus Power Hub,Generic Interface
Installation and Commissioning
Connecting the Host
The motherboard is connected to the host system via designated screw terminals.
_
Tr un k
+
Host +
-
Host -
S
Shield
Grounding
The motherboard is connected to the earth via designated screws.
If needed, an optional grounding rail can be applied.
The torque required for tightening the grounding screws: 1.5 Nm
3.3.1
Connections
1
Primary bulk power connection with mounted connector cover for Ex ic installations
2
Host connection
3
Secondary connection with mounted connector cover for Ex ic installations
4
Common alarm voltage-free contact with final motherboard link (The alarm contact has
to be looped at the last motherboard)
5
Diagnostic bus connection
6
Connections for fieldbus trunk
7
Diagnostic link cable ACC-MB-HDC
20
S
1
2
7
3
4
5
6
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